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An object is placed 11 centimeter in front of a spherical refracting surface with a +27 centimeter radius of curvature. The index of refraction of the refracting substance is 2.2 and it is embedded in transparent substance with index of refraction 1.3. Evaluate what is the image distance (including the sign)?
A long, narrow, uniform tube of mass M and length l rotates freely about a perpendicular axis through its CM. What will the tube's angular velocity be when this happens
A pole projects horizontally from the front wall of a shop. A5.1-kg sign hangs from the pole at a point 2.2m from the wall. What is the torque due to this sign
A rocket of total mass 3180Kg is traveling in outer space witha velocity of 115m/s. how much mass must be expelled
q1. two speakers one directly behind the other are each generating a 374-hz sound wave. what is the smallest parting
A 250 kg space probe weighs 935N on thesurface of Mars. What is the gravitational field strength on the surface of Mars
A transformer consisting of two coils wrapped around an ironcore is connected to a generator and a resistor. There are 11 turnsin the primary coil and 18 turns in the secondary coil. The peakvoltage across the resistor is 67V. What is the peak emf..
Three forces act on a moving object. One force has a magnitude of 86.7 N and is directed due north. Another has a magnitude of 59.9 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the obj..
You are standing 5 m from a tractor when the operator starts it ip the intensity is 3 x10^-5 W/m^2. How much did the sound level change
The blades of a kitchen blender rotate counterclockwise at 2.2×104 rpm (revolutions per minute) at top speed. find the average angular acceleration of the blades
A standing wave on a tight string experiment is set up in thelaboratory. One end of the string is attached to an oscillatorthat vibrates with a frequency of 60 Hz. What is the wavelength of the standing wave
An electron with a speed of 1.1 × 107 m/s moves horizontally into a region where a constant vertical force of 5.6 × 10-16 N acts on it. determine the vertical distance the electron is deflected
Three point charges , 2 positive, and 1 negative, each havinga magnitude of 20uC are placed at the vertices of an equilateraltriangle 30.0cm on a side. What is the electric potential at the negative charge
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